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Why should you use OS virtualization?
Today, most servers use about 8% of their resources (average). That’s too low. For example, you can have DHCP server on one physical machine and DNS server on another machine. That’ll work fine, but it would be better to have only one physical machine instead of two, because each machine needs it’s physical place, electric power, cooling… You can accomplish this by using server virtualization, which means that you can install few virtual operating systems on one machine, and every OS thinks that it’s the only OS on the machine.
Benefits of virtualization:
- software developing and testing. This means that you can test your application on few operating systems with different service packs on one machine.
- You buy one server, but you have few servers
- Easier backup and restore
- and everything I said before…
The only problem of OS virtualization is single point of failure, because if something happens to physical maching (problems with motherboards, graphic card…) you gonna lose all servers. But, you can avoid this by clustering your machine.
By Ilija Brajkovic | June 2, 2008
Tags: virtualization
Category: virtualization | Comments
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